牛津译林版（2019）必修第三册Unit 1 Nature in the balance拓展阅读课件(共18张PPT)

(共18张PPT)
必修三 Unit1 P62
Appreciating language：
A fable for tomorrow
Lead-in
Fable
A traditional short story that teaches a moral lesson, especially a story about animals
e.g. The Race Between Hare and Tortoise,
The Farmer and the Snake
Can you list some famous fables
Pre-reading
A fable for tomorrow
What do you think will happen in the future Are you an optimist or pessimist（悲观主义者）
Will a fable turn out to be truth
Pre-reading
Rachel Louise Carson (May 27, 1907 - April 14, 1964) was a Pittsburgh, Pennsylvania-born zoologist and marine biologist whose landmark book, Silent Spring, is often credited with having launched the global environmental movement. Silent Spring had an immense（巨大的） effect in the United States, where it spurred（激励） a reversal（反转） in national pesticide（杀虫剂） policy.
Pre-reading
In Silent Spring Carson asked the hard questions about whether and why humans had the right to control nature; to decide who lives or dies, to poison or to destroy non-human life. In showing that all biological systems were dynamic and by urging the public to question authority, to ask “who speaks, and why” Rachel Carson became a social revolutionary（革命者）, and Silent Spring became the handbook for the future of all life on Earth.
While-reading
While-reading
Read the article and analyze the structure.
Task 1
Para. 1
Para. 2
Para. 3
Para. 4
Para. 5
Para. 6
Para. 7
A town where all life lived in harmony with its surroundings
The same town which was stricken.
The cause of the change
The lesson: though imagined, the tragedy may easily become a reality.
transition sentence
Para3: Then everything began to change……
While-reading
Summarize the main idea.
Task 2
Para. 7
Main idea: It's urgent for us to protect the world, otherwise the world would be ruined.
While-reading
Read para1-2 and answer the following questions.
Task 3
Q1 : What was the town like in spring and winter
In spring, white clouds drifted above the green fields. In winter, the roadsides were places of beauty, where countless birds came to feed on the berries.
While-reading
Read para1-2 and answer the following questions.
Task 3
Q2 : Can you find out the images in the two paragraphs
Para1: town, life, prosperous farms, grain, hillsides, orchard, white clouds, green fields.
Para2: roads, beautiful tress, travelers, roadsides, countless birds, berries, rich bird life, people, streams, hills, first settlers, houses, wells(水井), barns(谷仓).
Q3 : Can you find some suitable adjectives to describe the town
Harmonious and prosperous
While-reading
Read para 3-5 and fill in the table.
Task 4
Before the change After the change
Chickens, cattle, sheep
Birds
Roadsides
Streams
Countless birds; rich bird life; Mornings were alive with birdsong
Beautiful trees, travelers, places of beauty; attractive
People fished the streams; clear and cold
Mysterious illness swept them; sickened and died.
Few birds; unhealthy; shaking violently and could not fly; no sound.
Be lined with browned and withered plants; silent; deserted by all living things
Lifeless; people no longer visited them; dead fish
Contrast
While-reading
Read para3-5 and answer the following question.
Task 5
Q1 : Can you find some suitable adjectives to describe the town in para 3-5
Silent and lifeless
Harmonious
and
prosperous
Silent
and
lifeless
Cause
While-reading
Read para 6 and find the cause.
Task 6
Q1 : What is the cause of the change
The people had done it themselves.
02
Deforestation
滥伐森林
04
Overgrazing
(过度放牧) & over-cultivation
05
Fertilizer
(化肥) & pesticides
(杀虫剂)
The use of fertilizer and pesticides
01
Overexploitation
过度开采
Overexploitation of natural resources
03
Hunting & smuggling
(猎杀和走私)
Hunting and smuggling
of wild animals and plants
While-reading
Task 6
Read para 6 and find the cause.
Q2 : Can you list some human activities that does harm to the environment
While-reading
Read para 7 and find the lesson.
Task 7
Q1 : What is the moral
A dangerous threat has crept（移动） upon us almost unnoticed. It is high time that man took actions to protect the environment.
The moral of a story is what you learn from it about how you should or should not behave.
Post-reading
Post-reading
There has been an increasing concern about the negative impact that technology has on the environment. What should we do to protect our environment
Promote sustainable development
Make laws to punish those who destroy the environment
Raise citizens’ environmental protection awareness
Save energy in daily life
Recycle waste batteries
Use energy-saving lamps
Refuse to use disposable chopsticks
Reduce the use of plastic bags...
Homework
Homework
Imagine what the earth will be like in the future. Will it be destroyed by human beings, or be prosperous and habitable Write a composition in no less than 150 words.